src/share/vm/compiler/abstractCompiler.hpp

Thu, 04 Apr 2013 10:01:26 -0700

author
mikael
date
Thu, 04 Apr 2013 10:01:26 -0700
changeset 4889
cc32ccaaf47f
parent 4444
606eada1bf86
child 5919
469216acdb28
permissions
-rw-r--r--

8003310: Enable -Wunused-function when compiling with gcc
Summary: Add the -Wunused-function flag and remove a number of unused functions.
Reviewed-by: dholmes, coleenp, kvn

     1 /*
     2  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
    26 #define SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
    28 #include "ci/compilerInterface.hpp"
    30 typedef void (*initializer)(void);
    32 class AbstractCompiler : public CHeapObj<mtCompiler> {
    33  private:
    34   bool _is_initialized; // Mark whether compiler object is initialized
    36  protected:
    37   // Used for tracking global state of compiler runtime initialization
    38   enum { uninitialized, initializing, initialized };
    40   // This method will call the initialization method "f" once (per compiler class/subclass)
    41   // and do so without holding any locks
    42   void initialize_runtimes(initializer f, volatile int* state);
    44  public:
    45   AbstractCompiler() : _is_initialized(false)    {}
    47   // Name of this compiler
    48   virtual const char* name() = 0;
    50   // Missing feature tests
    51   virtual bool supports_native()                 { return true; }
    52   virtual bool supports_osr   ()                 { return true; }
    53   virtual bool can_compile_method(methodHandle method)  { return true; }
    54 #if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK))
    55   virtual bool is_c1   ()                        { return false; }
    56   virtual bool is_c2   ()                        { return false; }
    57   virtual bool is_shark()                        { return false; }
    58 #else
    59 #ifdef COMPILER1
    60   bool is_c1   ()                                { return true; }
    61   bool is_c2   ()                                { return false; }
    62   bool is_shark()                                { return false; }
    63 #endif // COMPILER1
    64 #ifdef COMPILER2
    65   bool is_c1   ()                                { return false; }
    66   bool is_c2   ()                                { return true; }
    67   bool is_shark()                                { return false; }
    68 #endif // COMPILER2
    69 #ifdef SHARK
    70   bool is_c1   ()                                { return false; }
    71   bool is_c2   ()                                { return false; }
    72   bool is_shark()                                { return true; }
    73 #endif // SHARK
    74 #endif // TIERED
    76   // Customization
    77   virtual bool needs_stubs            ()         = 0;
    79   void mark_initialized()                        { _is_initialized = true; }
    80   bool is_initialized()                          { return _is_initialized; }
    82   virtual void initialize()                      = 0;
    84   // Compilation entry point for methods
    85   virtual void compile_method(ciEnv* env,
    86                               ciMethod* target,
    87                               int entry_bci) {
    88     ShouldNotReachHere();
    89   }
    92   // Print compilation timers and statistics
    93   virtual void print_timers() {
    94     ShouldNotReachHere();
    95   }
    96 };
    98 #endif // SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP

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